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SSP7901P36PR

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Shanghai Siproin Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SSP7901P36PR

Shanghai Siproin Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3L

SSP7901P36PR from Shanghai Siproin Microelectronics, in a SOT-89-3L. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground reference pin (Vss) for the regulator; the output voltage absolute maximum is specified relative to Vss.
2 Vin power_in Regulator input supply; absolute maximum is -0.3 V to 40 V, recommended operating maximum is 36 V, and the input voltage range is 2.2 V to 40 V.
3 Vout power_out Regulated output; absolute maximum is Vss-0.3 V to VIN+0.3 V, with output current up to 300 mA.

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
Package SOT-89-3L
Category Power Management (PMIC)
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Voltage (absolute maximum) VIN -0.3 40 V Ta=25℃ unless otherwise indicated 5
Output Current (absolute maximum) Iout 300 mA 5
Power Dissipation (SOT-89) PD 650 mW SOT-89 package, footnote (1): increasing welding area increases power dissipation 5
Operating Ambient Temperature (absolute maximum) Topr -40 85 ℃ 5
Storage Temperature Tstg -40 125 ℃ 5
ESD Protection HBM ESD HBM 2000 V HBM 5
Input Voltage (recommended operating) VIN -0.3 36 V 5
Operating Ambient Temperature (recommended operating) Topr -40 85 ℃ 5
Output Voltage tolerance VOUT -2 2 % VIN=VOUT(S)+2V, IOUT=10mA; printed as VOUT(S) x0.98 to VOUT(S) x1.02 (tolerance ±2%) 6
Line Regulation ΔVOUT/ΔVIN 0.01 0.02 ％/V VOUT(S)+2V≤VIN≤36V, IOUT=10mA 6
Load Regulation (VOUT(S)≤10V) ΔVOUT 40 90 mV VIN=Vout(S)+2V, 1mA≤IOUT≤300mA, Vout(S)≤10V 6
Temperature Stability Ta VOUT -50 50 ppm/℃ VIN = VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤85℃ 6
Quiescent Current (3.0≤VOUT(S)≤40V) IQ 1 1.6 3 μA no load, 3.0≤VOUT(S)≤40V 6
Input Voltage VIN 2.2 40 V 6
Maximum Output Current IOUTMAX 300 mA 6
Current Limit ILIM 340 mA VIN= VOUT(S)+1V, VOUT = 0.98 ×VOUT(S) 6
Short Circuit Current ISHORT 140 mA VIN=Vout(S)+2V, Vout Short to GND with 0Ω 6
Power Supply Rejection Ratio f=10Hz PSRR 70 dB f=10Hz, VOUT(S)=3.3V (as printed) 6
Power Supply Rejection Ratio f=100Hz PSRR 70 dB f=100Hz, VOUT(S)=3.3V (as printed) 6
Power Supply Rejection Ratio f=1kHz PSRR 55 dB f=1kHz, VOUT(S)=3.3V (as printed) 6
Over Temperature Protection OTP 140 ℃ IOUT=10mA 6
Dropout Voltage at IOUT=10mA VDROP 20 mV IOUT=10mA 6
Dropout Voltage at IOUT=100mA VDROP 350 mV IOUT=100mA 6
Dropout Voltage at IOUT=200mA VDROP 770 mV IOUT=200mA 6
Dropout Voltage at IOUT=300mA VDROP 1380 mV IOUT=300mA 6

CAD (KiCad official)

  • Symbol: SSP7901P36PR
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3L (KiCad packages3D, STEP)
  • 3D model files: ssp7901p36pr-etched.step / ssp7901p36pr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ssp7901p36pr.step / ssp7901p36pr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Shanghai Siproin Microelectronics datasheet (13 pp, sha256 93a7c55caf0b2e7f, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF